Commit 264d1df3 authored Jun 03, 2015 by Jeff Layton Committed by Trond Myklebust Jun 10, 2015

sunrpc: if we're closing down a socket, clear memalloc on it first



We currently increment the memalloc_socks counter if we have a xprt that
is associated with a swapfile. That socket can be replaced however
during a reconnect event, and the memalloc_socks counter is never
decremented if that occurs.

When tearing down a xprt socket, check to see if the xprt is set up for
swapping and sk_clear_memalloc before releasing the socket if so.

Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

parent 8e228133

net/sunrpc/xprtsock.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -827,6 +827,9 @@ static void xs_reset_transport(struct sock_xprt *transport)
		if (sk == NULL)
		return;

		if (atomic_read(&transport->xprt.swapper))
		sk_clear_memalloc(sk);

		write_lock_bh(&sk->sk_callback_lock);
		transport->inet = NULL;
		transport->sock = NULL;